Thank you Maxime :) you solved my problem, resp. there never was a problem. On Fri, 2013-03-08 at 14:53 +0100, Maxime Gauduin wrote: > Also, modules are not in extramodules anymore, they are in > '/usr/lib/modules/<your kernel>/kernel/misc/' now. Indeed in /lib/modules/3.7.10-1-ARCH/kernel/misc/ and /lib/modules/3.6.11-rt30-1-rt/kernel/misc/ there are already the vbox kernel modules, but I deleted modules in /extramodules, so I guess I had modules in /misc and /extramodules. This might cause issues, but I didn't run VBox by Arch until now, I also didn't enable the mkinitcpio hook until now. The package virtualbox-host-modules put the modules into /extramodules. $ pacman -Qi virtualbox Depends On : virtualbox-host-modules $ pacman -Ql virtualbox-host-modules virtualbox-host-modules /usr/lib/modules/extramodules-3.7-ARCH/vboxdrv.ko.gz virtualbox-host-modules /usr/lib/modules/extramodules-3.7-ARCH/vboxnetadp.ko.gz virtualbox-host-modules /usr/lib/modules/extramodules-3.7-ARCH/vboxnetflt.ko.gz virtualbox-host-modules /usr/lib/modules/extramodules-3.7-ARCH/vboxpci.ko.gz On Fri, 2013-03-08 at 14:48 +0100, Maxime Gauduin wrote: > Try 'dkms remove vboxhost/4.2.8 --all' and attempt to build > again('dkms autoinstall' should do the trick for this). # dkms remove vboxhost/4.2.8 --all Removed the modules from /kernel/misc/ :). # dkms autoinstall Didn't work. # dkms install vboxhost/$(pacman -Q virtualbox|awk {'print $2'}|sed 's/\-.\+//') -k $(uname -rm|sed 's/\ /\//') # dkms install vboxhost/$(pacman -Q virtualbox|awk {'print $2'}|sed 's/\-.\+//') -k 3.6.11-rt30-1-rt/x86_64 Rebuild the modules. So there never was something broken, I just wasn't aware that the modules now are in /misc. Regards, Ralf PS: On Ubuntu they are in different places too, I found them in /run/media/rocketmouse/q/lib/modules/3.6.5-rt14/updates/dkms/ for an installed kernel and in /run/media/rocketmouse/q/lib/modules/3.5.0-23-generic/misc/ for a kernel that is removed, but they're missing for /run/media/rocketmouse/q/lib/modules/3.5.0-18-lowlatency another installed kernel.